Flexible coupling



Dec. 8, 92 1,565,011

S. JENCICK FLEXIBLE COUPLING Filed April 29. 1920 I INVENTOR ATTORNEYS WfM ru a D... s, 1925.

' UNITED STATES PATENT OFFICE.-

s'rnrnnn Jm'rcrcmor cLnv-ELANp; OHIO, ASSIGNOR T GUSTAVUS a. scnanzn, or CLEVELAND, cum; 2. L. SCHA1\TZE anmrms'rna'ronor sun G. A. sclralvzn, 131- CEASED.

FLEXIBLE COUPLING.

'Applicationflled April 29,1920. $eria1No. 377,624.

To all whom itmag concern; 7

Be it knownthat I, STEPHEN JnNcIcK, a citizen or subject of the Government of Austria, residing at Cleveland, in the county of 'Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Flexible Couplings, of which. the 'following is. agspecification.

This invention relates to I flexible cou- 1 plings, suchas are used for connecting aligned shaft secti0ns, especially when some flexibility or freedom of movement between such shaft membersis required.

The invention is an improvement upon or modification of the invention described in my companion. application Serial Number 377,623 for flexible couplings, filed of even date herewith. The present invention relates-to that class 90 of .fiexlble couplings embodying a flexible disc having a central opening, the edge of said opening and the periphery of the disc being respectively connected to the two shaft sectlons. v

The object of the invention is to improve the connection between the two shaft-sections and the inner and 'outer edges of the disc to thereby materially increase the strength of the coupling without .lossof flexibility and without material increase in cost. I

Further objects of the invention are in art obvious and in part will appear more 1n detail hereinafter.

In the drawings, which represent one embodiment of the' invention, Fig. 1 is an end view; Fig. .2 is a sectional elevation,

on the line 2-2, Fig. 1; Fig. 3 is an end view of the central coupling disc; Fig. 4 4 is a section on the line 4 4, Fig. 3-; and

Fig. 5 is an enlarged detail section on the line 5-5, Fig. 3. w

- In the drawings, the two shaft members to be connected are indicated at 1. Each of said shaft members has connected there-- to a sleeve or other coupling frame member 2. Said couplling members 2 are connected by a disc 3 w ich lies between the shaft sec- 1 tions in a plane transversethereto and is so provided with a central opening 4. One of the members. 2, such as the one at the left in Fig. 2, is connected to the outer edge or periphery of the disc 3, while the other tion 7.

The material for said disc is built u member .2 at the rightis connected to the edge of opening 4. The left hand member 2 is therefore provided with arm portions connected at their outer ends by a ring 6, while the right hand member 2 is provided with a similar but smaller ring por- Disc 3 is made up of a series of layers or plies 8 of canvas or other suitable textile fabric embedded in a body 9 of rubber, rubber composition, or like flexible material.

in large sheets and the discs are punche out therefrom. Inthe manufacture of the present coupling said disc, after being punched .out, is provided on each face adjacent to both the inner and outer edges with an annular rib .or projection 10 ofrubber, there being'four of such annular ribs in all; Theserubber ribsmay be .appliedafter the disc is punched out and before it is vulcanized, so that during thevulcanizing operation they become, in effect an integral part of the disc. At intervals the disc is provided, adjacent its outer-periphery andadis provided with a trough-shapedring or annulus 15. These flanges and rings serve to closely embrace and confine the rubber ribs and also serve" as washers for the bolts If desired, each rib ma be reenforced by embeddingtherein stran s 16 of cord, such as are used informing cord tires. These strands pass around the bolt openings and are contmuous aroundthe entire circumference. They therefore serve to reenforce the entire structure. I

When the device is clamped together the strength is increased very materially, due to the fact that each bolt has an increased bear-. ing surface in the rubber. where the strain is most severe. Therefore, the bolts may be made of smaller diameter without loss of strength. At the same time the flexibility of. the device has not been diminished and the two shaft sections may be inclined to each other, as is usual.

What I claim is:

1. A coupling member, comprising a flexible disc having a central opening, said disc being provided 'with reenforcing' strands around its periphery.

2. A coupling member, comprising a flexible disc having a central opening, said -disc being provided with reenforcing means around its periphery and the edge of said 'opening.

3. A coupling member, comprising a flexible disc having a central opening, said disc being provided around its periphery and the edge of said opening with reenforcing ribs of flexible material.-

4. A coupling member, comprising a flexible disc having a central opening, said nseaoll 5. A coupling member, comprisinga flexible disc having a central opening, said disc being provided on each face with reenforcing ribs at'the edge of said opening and at the periphery.

6. A coupling member, comprising a flexible disc having a central opening, said disc being provided on each face with .reenforcing ribs at the edge of said opening and at the periphery, said disc being also provided with bolt openings through its body and through said ribs. 7. A coupling, comprising a disc of flexible material having-a central opening and opposing pairs of reenforcing ribs having bolt openings therethrough, frame members adapted for attachment to shaft members, said frame members having channeled ring portions for engaging said ribs, and bolts passing through said ring portions and openings.

' In testimony whereof I afiix my signature.

STEPHEN JEN CICK. 

